Commit 9124d51e authored May 23, 2022 by Miaoqian Lin Committed by Greg Kroah-Hartman Aug 25, 2022

mtd: maps: Fix refcount leak in of_flash_probe_versatile



[ Upstream commit 33ec82a6d2b119938f26e5c8040ed5d92378eb54 ]

of_find_matching_node_and_match() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: b0afd44b ("mtd: physmap_of: add a hook for Versatile write protection")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220523140205.48625-1-linmq006@gmail.com


Signed-off-by: Sasha Levin <sashal@kernel.org>

parent e0012773

drivers/mtd/maps/physmap-versatile.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -207,6 +207,7 @@ int of_flash_probe_versatile(struct platform_device *pdev,

		versatile_flashprot = (enum versatile_flashprot)devid->data;
		rmap = syscon_node_to_regmap(sysnp);
		of_node_put(sysnp);
		if (IS_ERR(rmap))
		return PTR_ERR(rmap);